Improvement in passenger-gates



0. J. JiRGENsEN.

Passenger-Gate No. 220,624. Patented Oct. 14,1879.

MPEIERS, PHOTO-LITHOGRAPHER, WASHINGTON, n C

UNITED STATES PATENT OFFICE.

CARL JULIUS JORGENSEN, OF STADE, HANOVER, GERMANY.

IMPROVEMENT IN PASSENGER-GATES.

Specification forming part of Letters Patent No. 220,624, dated October14, 1879; application filed May 28, 1879.

. make and use the same, reference being bad to the accompanyingdrawings, and to letters of reference marked thereon, which form a partof this specification.

This invention relates to passenger-gates so constructed as to admit ofthe entrance and passage of but one person at a time.

My improvement consists of various combinations, specifically set forthin the .claims at the close of this specification, of certain mechanicaldevices, of which devices the following are the most essential ones,viz: a pair of barriers which normally extend sufficiently far acrossthe gateway from opposite sides to prevent'the passage of a person, butwhich readily yield laterally by receding under the pressure of apassing person, and an auxiliary pair of barriers, which normally do notobstruct the gateway, but are partially thrown across the same on therecession of the primary pair of barriers, so as to confine the use ofthe gateway to one person at a time.

In order that my invention may be fully understood, I have illustratedand will proceed to describe the form thereof which at the present timeI regard as the best embodiment of the same; but will also allude tosome modifications of construction and arrangement of some of the parts,to indicate that the actual embodiment of the invention may beconsiderably varied without any substantial change in the principle ofoperation.

In the annexed drawings, Figure 1 is a perspective view of apassenger-gate embodying my invention. Fig. 2 is a plan of the same, thetop platesof the hollow curbs having been removed to expose the devicesin the chambers of said curbs. Fig. 3 is an exterior side elevation,exposing to view the devices in one of the hollow curbs.

The same letters of reference are used in all the figures in thedesignation of identical parts.

The gateway A is flanked by the parallel curbs B and B, of properheight, and forming part of a fence, wall, car, or other structure. Thecurbs are made hollow for the purpose of receiving some of the operativeparts.

(1 and 0 refer to the primary barriers, of a contour best seen in Fig.2. Their curved arms are adapted to play through slots in the sides ofthe curbs, while their straight arms are rigidly secured to therespective vertical shafts D and D, mounted in the chambers of therespective curbs.

Opposite crank-arms d and d on the lower ends of the shafts D and I) areconnected by a coupling-rod, D underneath the base A of the gateway, sothat the primary barriers will move in unison always.

In order to hold the primary barriers normally projected across thegateway, a segmental pulley, E, is secured to each of the shafts D andD, and to each pulley a cord or chain, E, is secured, running over asheave, E and carrying a weight, E, which tends to hold the shaft so asto project the primary barrier attached to it. In the ends of the curvedprojecting arms of the primary barriers are mounted anti-frictionrollers 0 preferably constructed with a rubber tire, so that a personmay walk through the gateway with a minimum of friction on thesebarriers.

A small anti-friction roller, 0, on the straight arm of each primarybarrier engages a slotted arm, F, on an auxiliary barrier, F, fulcru medat f, one in each hollow curb. These auxiliary barriers F have the shapeof an elbow, the short arm of which is adapted to play through a slot inthe hollow curb, to reach part way across the gateway at certain times,it carrying an anttfriction roller, F, in its end, like the primarybarrier.

The respective dispositions of the primary and auxiliary barriers aresuch that when the former project across the gateway the latter areentirely retracted within the hollow curbs, as shown in full lines inFig. 2. On the recession of the primary barriers the auxiliary barriersare projected part way across the gateway by the action of roller 0 ofthe former on the slotted arm F of the latter, and are maintained inthis projected position until the primary barriers are again projectedby the action of the weights, when the rollers 0 thereof again retractthe auxiliary barriers. The auxiliary barriers must be so disposed as toobstruct the gateway immediately behind a person passing the primarybarriers by pushing them aside. In order that the auxiliary barriers mayobstruct the gateway until the primary barriers have been againpartially projected, the slots j in the arms F of the auxiliary barriersare so formed that the projection of the auxiliary barriers willbe'accomplished or completed before the primary barriers have beenpushed aside far enough to permit of the passage of the person, whilethe further recession of the primary barriers will have no other efi'ecton the auxiliary barriers but to maintain them in their projectedposition. Thus the primary barriers will be partially projected againbefore they begin to retract the auxiliary barriers, so that no personcan slip through without first pushing aside the primary barriers.

When projected the ends of the primary barriers approach each otherpretty closely; but the ends of the auxiliary barriers are not broughtso near together, in order to prevent injury to persons in projectingsaid barriers.

A suitable register is to be attached to this gate, and suitablyconnected to any moving partof the same, so that the number of personspassing through the gate may be duly registered.

The primary barriers may be actuated by springs instead of by weights.The connection between the primary and auxiliary barriers might be inthe nature of segmental gears so constructed as to provide for stoppingfurther movement of the auxiliary barriers at the proper times.

The primary and auxiliary barriers have been described as arranged andoperating in pairs. Although this is the preferred construction, I donot limit myself, as it will be readily seen that a single primarybarrier and a single auxiliary barrier, connected by intermediatemechanism such as described, may be used instead with good eflect.

What I claim as my invention, and desire to secure by Letters Patent,is-

The combination, substantially as before set forth, of a movable primarybarrier, 21 separate movable auxiliary barrier, and an intermediateconnecting mechanism, substantially such as described, which holds theauxiliary barrier quiescent after projection during the movements of theprimary barrier beyond a given point of partial recession.

In testimony that I claim the foregoing I have hereunto set my hand this23d day of May, 1879.

CARL JULIUS JORGENSEN.

Witnesses CHRISTOPHER. STANTON, C. W. SCHROEDER.

